Time Domain Methods in Electrodynamics

This book consists of contributions given in honor of Wolfgang J.R. Hoefer. Space and time discretizing time domain methods for electromagnetic full-wave simulation have emerged as key numerical methods in computational electromagnetics. Time domain methods are versatile and can be applied to the solution of a wide range of electromagnetic field problems. Computing the response of an electromagnetic structure to an impulsive excitation localized in space and time provides a comprehensive characterization of the electromagnetic properties of the structure in a wide frequency range. The most important methods are the Finite Difference Time Domain (FDTD) and the Transmission Line Matrix (TLM) methods.

The contributions represent the state of the art in dealing with time domain methods in modern engineering electrodynamics for electromagnetic modeling in general, the Transmission Line Matrix (TLM) method, the application of network concepts to electromagnetic field modeling, circuit and system applications and, finally, with broadband devices, systems and measurement techniques.

Zusammenfassung
On May 16th 2007 the Faculty of Electrical Engineering and Information Te- nology of the Technische Universitat ¨ Munchen ¨ bestowed the degree of the doctor honoris causa to Wolfgang J. R. Hoefer for Extraordinary achievements in the theory of electromagnetic elds. On this special occasion a symposium on Time Domain Methods in Modern Engineering Electrodynamics has been held in honor of P- fessor Wolfgang J. R. Hoefer at the Technische Universitat ¨ Munchen ¨ on May 16 and 17, 2007. The symposium topic was focused on the main area of research of Wolfgang J. R. Hoefer, the time domain methods in computational electromagnetics especially the transmission line matrix method and its applications. The transm- sion line matrix method has been developed and rst published by Johns and Beurle in 1971. In the past 20 years Wolfgang Hoefer has given exemplary contributions to the development of the transmission line method. Space and time discretizing time domain methods have emerged as key nume- cal methods in computational electromagnetics. Time domain methods are versatile and can be applied to the solution of wide range of electromagnetic eld pr- lems. Computing the response of an electromagnetic structure to an impulsive - citation localized in space and time provides a comprehensive characterization of the electromagnetic properties of the structure in a wide frequency range. The most important methods are the nite difference time domain and the transmission line matrix methods.

Inhalt

In Search of the Intangible - 43 Years of Research in Electromagnetics.- Full-Wave Simulation of Integrated Circuit Packages on a Parallel Architecture.- Recent Progress in Unifying the Time- and Frequency-Domain Methods.- Time-Domain Neural Network Approaches to EM Modeling of Microwave Components.- Modeling of Curved Boundaries in the Finite-Difference Time-Domain Method using a Lagrangian Approach.- Computing the Transmission Line Parameters of an On-chip Multiconductor Digital Bus.- Two Decades of SCN Modelling and Beyond.- Calculation of Instantaneous Power and Energy Quantities in TLM Simulations.- The Combined Schrödinger-Maxwell Problem in the Electronic/Electromagnetic Characterization of Nanodevices.- Recent Advances in the Combination of the Unscented Transform (UT) with the Transmission Line Modeling Method (TLM).- Bandwidth Optimization using Transmission Line Matrix Modeling and System Identification.- Study of Single and Dual Band Wearable Metallic Button Antennas for Personal Area Networks (PANs).- Fast and Efficient Methods for Circuit-based Automotive EMC Simulation.- Equivalent Circuit (EC) FDTD Method for Dispersive Materials: Derivation, Stability Criteria and Application Examples.- A 3D Isotropic Left-Handed Metamaterial Based on the Rotated TLM Scheme.- Connection Subnetworks for the Transmission Line Matrix (TLM) Method.- RFID.- Numerical Modeling of Car Antennas.- Time-Domain Modelling of Group-Delay and Amplitude Characteristics in Ultra-Wideband Printed-Circuit Antennas.- On the Modeling of Ultra Wide Band (UWB) Radiating Structures.- An Efficient Electromagnetically Optimized Design and Realization of Pseudo-Elliptic All-Metal Cavities Filters.- Simulation of Coplanar Devices Accessing Nano Systems.- Time-Domain Measurements ofElectromagnetic Interference.- Space Mapping Optimization and Modeling of Microwave Devices with MEFiSTo.